condition	mean	min	max
4 h after light	14.36402	13.351239999999999	16.02887
8 h after light	8.838736333333333	5.0811660000000005	15.85571
12 h after light	19.738503333333334	16.23808	21.552629999999997
16 h after light	18.336613333333332	13.84015	25.1112
4 h after dark	52.90000333333333	41.82714	64.23311
8 h after dark	19.102843333333336	16.131970000000003	21.068260000000002